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KA7805R Datasheet(PDF) 11 Page - Fairchild Semiconductor

No. de pieza KA7805R
Descripción Electrónicos  3-Terminal 1A Positive Voltage Regulator
Download  28 Pages
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA7805R Datasheet(HTML) 11 Page - Fairchild Semiconductor

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KA78XX/KA78XXA
11
Electrical Characteristics (KA7805A)
(Refer to the test circuits. 0oC < TJ < +125
oC, Io =1A, V I = 10V, C I=0.33
µF, C O=0.1µF, unless otherwise speci-
fied)
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Output Voltage
VO
TJ =+25
oC4.9
5
5.1
V
IO = 5mA to 1A, PO
≤ 15W
VI = 7.5V to 20V
4.8
5
5.2
Line Regulation (Note1)
Regline
VI = 7.5V to 25V
IO = 500mA
-5
50
mV
VI = 8V to 12V
-
3
50
TJ =+25
oC
VI= 7.3V to 20V
-
5
50
VI= 8V to 12V
-
1.5
25
Load Regulation (Note1)
Regload
TJ =+25
oC
IO = 5mA to 1.5A
-
9
100
mV
IO = 5mA to 1A
-
9
100
IO = 250mA to 750mA
-
4
50
Quiescent Current
IQ
TJ =+25
oC-
5.0
6.0
mA
Quiescent Current
Change
∆IQ
IO = 5mA to 1A
-
-
0.5
mA
VI = 8 V to 25V, IO = 500mA
-
-
0.8
VI = 7.5V to 20V, TJ =+25
oC-
-
0.8
Output Voltage Drift
∆V/∆T
Io = 5mA
-
-0.8
-
mV/ oC
Output Noise Voltage
VN
f = 10Hz to 100KHz
TA =+25
oC
-10
-
µV/Vo
Ripple Rejection
RR
f = 120Hz, IO = 500mA
VI = 8V to 18V
-68
-
dB
Dropout Voltage
VDrop
IO = 1A, TJ =+25
oC-
2
-
V
Output Resistance
rO
f = 1KHz
-
17
-
m
Short Circuit Current
ISC
VI= 35V, TA =+25
oC
-
250
-
mA
Peak Current
IPK
TJ= +25
oC-
2.2
-
A


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